Wiseco Piston Kit - 64.50 mm - Yamaha RD350/RD400 - K130

Designed and built for each specific 2-stroke powersports engine. Forged from high-silicon alloy for maximum strength and dependability. Dedicated forgings and additional lightening operations allow for optimized strength-to -weight ratio. Kit includes piston(s), ring(s), wrist pin, and circlips.